缩短牛产后空怀期的措施

[1] Roche JF;Development ofdominant follicles and length of ovarian cycles inPost-parturn dairy cows. Savio J D,Boland MP. Journal of Reproduction and Fertility . 1990

[2] Regulation of ovarianfunction by catecholestrogens:current concepts. Spicer LJ,Hammond J M. JSteroid Biochem . 1989

[3] Effects ofbody condition and estradiol on luteinizing hor-mone secretion in the post partum beef cows. Wrisht IA.Rhind SM,Smith AJ,et al. Domes Anim Endocrin . 1992

[4] Resumption offollicular activity in the early post—partum periodof dairy cows. Savio J D.Boland MP,Hynes N,et al. Journal of Reproduction and Fertility . 1990

[5] Deaver DR et al,Endocrine profiles associated with life span of in-duced ocrpora lutea in port partum beef cows. Garcia -Wonder M,Lewis PE. JAnim Sci . 1986

[6] Inducedovulation of the first postpartum dominant foillicleIn beef suckler cows using a GnRH analogue. Growe MA,Goudng D,Baguisi A,et al. Journal of Reproduction and Fertility . 1993

[1] Roche JF;Development ofdominant follicles and length of ovarian cycles inPost-parturn dairy cows. Savio J D,Boland MP. Journal of Reproduction and Fertility . 1990

[2] Regulation of ovarianfunction by catecholestrogens:current concepts. Spicer LJ,Hammond J M. JSteroid Biochem . 1989

[3] Effects ofbody condition and estradiol on luteinizing hor-mone secretion in the post partum beef cows. Wrisht IA.Rhind SM,Smith AJ,et al. Domes Anim Endocrin . 1992

[4] Resumption offollicular activity in the early post—partum periodof dairy cows. Savio J D.Boland MP,Hynes N,et al. Journal of Reproduction and Fertility . 1990

[5] Deaver DR et al,Endocrine profiles associated with life span of in-duced ocrpora lutea in port partum beef cows. Garcia -Wonder M,Lewis PE. JAnim Sci . 1986

[6] Inducedovulation of the first postpartum dominant foillicleIn beef suckler cows using a GnRH analogue. Growe MA,Goudng D,Baguisi A,et al. Journal of Reproduction and Fertility . 1993